FLUSH TOILET STOOL, DRAIN SOCKET, AND TOILET

摘要

PROBLEM TO BE SOLVED: To increase the suction efficiency of the stagnant water in a bowl section by a siphon action. SOLUTION: This flush toilet stool 10 is provided with a bowl section 20, a connection path 31, an ascent path 32, and a descent path 33 across a weir 34. The descent path 33 is provided with an expansion section 33a with an expanded pipe diameter and a terminal contraction section 33b made narrower in opening area than the expansion section 33a at its terminal portion and is connected to a drain socket 70. The drain socket 70 is provided with a drain pipe socket section 72 fitted in a drain pipe 90, and a siphon action induction section is formed with a socket expansion section 75 with an expanded pipe diameter and a contraction pipe section 76 made smaller in diameter below a toilet floor surface FL in the drain pipe socket section 72.